Interestingly, all of this had already been played in a high-level game.
13. a3a8  13... b8a6  14. b4d2  14... e7g5 With the king in the middle of the board and the queen out of play and with a chance of being trapped, White's position is already very dangerous. 15. d2g5 After another mistake, White has no chance of saving the game.